A) \[\sqrt{\frac{rF}{m}}\]
B) \[\sqrt{\frac{F}{r}}\]
C) \[\sqrt{Fmr}\]
D) \[\sqrt{\frac{F}{mr}}\]
Correct Answer: A
Solution :
Centripetal force under the action of which body moves in circle \[{{\operatorname{F}}_{\operatorname{centripetal}}}~=\frac{m{{v}^{2}}}{\operatorname{r}}\] \[\operatorname{F}~=\frac{m{{v}^{2}}}{\operatorname{r}}\] \[\operatorname{v}=\sqrt{\frac{rF}{m}}\]
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